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Repeaters
Motorola GR500
Motorola GR1225
Introducing MOTOTRBO™ Professional Digital Two-Way Radio System.
The next-generation, professional, two-way radio communications solution is here. MOTOTRBO is the
first digital two-way radio system from Motorola specifically designed to meet the requirements of
professional organizations that need a customizable business critical communication solution using a
licensed spectrum. MOTOTRBO combines the best in two-way radio functionality with digital
technology to deliver increased capacity and spectral efficiency, integrated data applications and
enhanced voice communications.
MOTOTRBO is a comprehensive solution. Dual analog and digital mode repeater, mobile and portable
units, data applications, accessories and services make it easy and affordable to adapt MOTOTRBO for
the unique needs of your operation, and migrate to a digital two-way radio platform at your own pace.
Find out more by clicking on any of the links below.
MOTOTRBO System Brochure 
MOTOTRBO Data Applications Brochure
Motorola GR500
Increase the range and capabilities of your mobile and portable radios with the GR500 repeater. It
provides the flexibility of frequency bands, power levels, and mounting requirements in a wide variety
of applications. VHF, UHF, and Cross-band Capabilities are available in this unit. Optional Controllers
can be added for enhanced features such as telephone interconnect, multiple PL/DPL codes and
signaling.
Features
The GR500 has the following features:
- Modular Design - Allows quick field replacement of disabled components.
- Wall-mount, lockable, heavy duty metal case - Provides ability to remote mount the repeater
in an unattended yet secure site.
- Supports VHF/UHF Cross-band Operation - Allows UHF and VHF radios users to
communicate with each other.
- Internal Mounting Space for additional components - Allows duplexers, preselectors and
battery revert modules to be installed internally.
- UL, CSA Approved
Applications
The GR500 repeater can be used for a variety of applications. Here are a few examples of some
key industries:
- Real Estate Management
- Community & Interconnect Repeaters
- Industrial Complexes
- Transportation Operations
- Rural Police and Fire
Models
The GR500 has a 7 Step Ordering Process due to the number of options available. Please
contact us to assist you in configuring a GR500 to meet your specific needs. All GR500
repeaters include the following:
- Field Programmable
- Support VHF/UHF/Cross-band with multiple frequency operation available
- Internal mounting for Duplexer and Preselector
- 25W continuous duty
- 40/45 intermittent
- 120/240V, 50/60Hz operation
- UL, CSA, TUV approved
- Integrated battery revert with float maintenance charger
- Compatible with all GR Series controller modules
Accessories
Click here for information on Motorola GR500 Repeater parts and accessories.
Motorola GR1225 Repeater
You can have X-Pand and all the advantages of a Motorola Repeater with the GR1225. With 16
programmable channels, you can talk on either a 25 or a 12.5 kHz channel allowing a seamless,
economical transition to the narrower bandwidth. Two-way users won't want to be without this greatly
expanded audio quality at 12.5 kHz. The GR1225 makes a perfect complement to the 1225 Series Two-
Way Radios.
Features
The GR1225 has the following features:
- 12.5/25 kHz Switchable Channel Spacing - with X-Pand Technology
- Compact Styling - The GR1225 accommodates a built-in power supply as well as
numerous internally housed accessories such as a duplexer, battery revert and an enhanced
controller.
- Adjustable Power - Each channel can be programmed to either 25 or 45 (UHF) or 25 or 50
(VHF) watts to meet various coverage needs.
- 2-Character Numeric LED Display - Green light illuminates the channel that's in use.
- Battery Back-Up Tone - When the battery revert kit is installed, it alerts users that they are
operating on the back-up battery supply.
- Time-Out Timer - Programmable from 1-255 seconds, this feature prevents a group from
monopolizing the repeater with a single transmission.
- Repeater Enable/Disable - Temporarily enables or disables repeater operation from the
front panel to allow use as a base station for dispatch operation.
- CWID (Continuous Wave Identification) - Continuous Wave Identification uses Morse
code to automatically send out the station ID to identify the transmitting repeater.
- Courtesy Beep - This programmable alert indicates when a person is through talking so that
other users are free to respond.
- Programmable Relay Delay - This “hang time” keeps the repeater transmitter keyed from
0 to 7 seconds after the radio user releases the Push-to talk switch to enable other users to
respond without having to re-activate the repeater.
- Advantage Port Expandability - Allow an authorized dealer to add an Advantage Board to
upgrade the repeater functionality.
Applications
The GR1225 Repeater can be used for a variety of applications. Here are a few examples of
some key industries:
- Convention Centers
- Delivery & Courier Operations
- Highway or Job Site Construction
- Hotels and Resorts
- Manufacturing & Industrial Facilities
- Rental Operations
- Rural Police, Fire and Ambulance
- Security
- Transportation services
Models (Factory Assembled Models)
- NH5165GR1225 146 - 174 MHz, 1-10 Watt
- NH5158GR1225 146 - 174 MHz, 25 - 50 Watt
- NH5164GR1225 444 - 474 MHz, 1-10 Watt
- NH5157GR1225 444 - 474 MHz, 25 - 45 Watt
Accessories
Click here for information on Motorola GR1225 Repeater parts and accessories.
